function isBigIntimport { isBigInt } from "https://dotland.deno.dev/x/polkadot@0.2.35/util/is/index.ts"; isBigInt(value: unknown): value is bigintExamples import { isBigInt } from 'https://deno.land/x/polkadot@0.2.35/util/mod.ts'; console.log('isBigInt', isBigInt(123_456n)); // => true Parametersvalue: unknownReturnsvalue is bigint